①16.4-7.8=
②☆56×72=
③☆823÷8=
④125×8=
⑤☆9.9+13.1=
⑥☆512÷9=
①245÷17=
②780÷39=
③936÷18=
④768÷24=
⑤514÷84=
⑥289÷17=
① 426×52=
②506×24=
③ 240×38=
④784÷26=
⑤117÷13=
⑥597÷28=
验算:
微信扫码预览、分享更方便